DIN 70020 Unit 10

Satisfactory Essays
DIN 70020 are specific and very strict. Unlike the SAE gross standards used in the U.S. and Great Britain for many years, the DIN standard requires power to be measured with standard intake, exhaust, and accessory systems in place. DIN horsepower ratings, therefore, are comparable to the modern SAE net rating system, although they are usually reported in metric horsepower (sometimes referred to as Pferdestärke, the German word for horsepower, and abbreviated PS), rather than mechanical horsepower. One mechanical horsepower is about 745.7 watts, whereas one metric horsepower is about 735.5 watts; therefore, 1 PS equals 0.986 horsepower. Because of that and because DIN horsepower ratings are calculated with the engine in “as-installed” condition,
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